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NW Wisconsin | Because I look at soil samples daily. If you are not applying K on soil here your soil tests will go down and down. There is no magic sauce yet that releases K in high demand crops. Alfalfa, potatoes, corn silage ect. I get soil samples from guys that plant soybeans for "cheap" on old grass hay ground that only got N and guess what they grow 10 bushel beans and wonder what they can do to fix it. Pretty obvious you havent seen actual run down soil that is sub 5 ppm phos and sub 10 ppm K. Here critical levels are 12-15 on phos and about 80 on K. Anything less than that and you are loosing yield.
And im not talking removal rate. Just fertilizer and demand in general. Good alfalfa will pull down a soil test even applying 4-500 lbs. No magic foo foo dust is going to change that. Nutrients in the plant leave when the plant gets taken off the ground. | |
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A better way to farm. The company on Facebook
